I am designing a table, for which I am loading the data into my table from different tables by giving joins. But I have Status column, for which I have about 16 different statuses from different tables, now for each case I have a condition, if it satisfies then the particular status will show in status column, in that way I need to write the query as 16 different cases.
Now, my question is what is the best way to write these cases for the to satisfy all the conditions and also get the data quickly to the table. As the data we are getting is mostly from big tables about 7 million records. And if we give the logic as case it will scan for each case and about 16 times it will scan the table, How can I do this faster? Can anyone help me out